The arrival of a new baby sibling conjures mixed emotions for a boy named Liam in this sweet and relatable story from Ellis (Ben Says Goodbye), set over four chapters. At home with his grandmother, Liam waits all day and night for his parents to return with Baby Sophie, but after they finally arrive, it turns out that the waiting has just begun: “Burping and crying and diapers and a little bit of throwing up was getting boring. It was time for Sophie to learn more things.” Mok’s warm digital illustrations tenderly depict Liam’s moments of adjustment, as well as the relationship between a perceptive grandmother and her not-so-patient grandson. Ages 5–8. (Apr.)